A bearing seat with a sliding mechanism

Abstract

The present invention discloses a bearing seat with a sliding mechanism, comprising a base, wherein both ends of an outer wall on one side of the base are fixedly connected with a first hollow frame, and a gear belt is provided to connect the first gear and the second gear in series, and when a staff member rotates the turntable, the second shaft core and the second gear will rotate accordingly, and at the same time, the two groups of first gears and the first shaft core will also rotate together, and when the threaded rod rotates, the slider can move back and forth on the outer wall of the rotating threaded rod, and at the same time, the second bearing seat and the movable roller above the U-shaped table plate will also move back and forth together, thereby playing a role in adjusting the distance between the fixed roller and the movable roller, and by providing a connecting structure between the gear long plate and the gear short plate, the slider can be fixed, and when the gear long plate moves downward and the tooth groove disengages from the gear protrusion on the bottom surface of the gear short plate, the slider can continue to slide, and at the same time, the position of the movable roller can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a bearing seat with a sliding mechanism. Background Art

[0002] The bearing seat is an important component used to support the bearing. Its function is to fix the outer ring of the bearing so that the inner ring can rotate freely while the outer ring remains stationary. The material selection of the bearing seat varies according to the application. Common materials include gray cast iron, ductile iron, cast steel, stainless steel and plastic. When selecting a bearing seat, it is necessary to carefully check and select according to the different requirements of the bearing and the bearing seat to ensure that it meets the design requirements and working environment.

[0003] During the operation of the roller press, there are at least two roller shafts, a fixed roller and a movable roller. By using a cylinder or an oil cylinder to push the movable roller, the distance between the movable roller and the fixed roller can be increased or decreased, thereby realizing the corresponding processing operation. However, in actual use, there are certain disadvantages in the method of moving the movable roller by pushing the bearing seats at both ends of the movable roller. In the process of frequent movement of the bearing seat along the slide groove, the bearing seat gradually deviates from the slide groove, resulting in long-term deviation of the movable roller bearing seat, causing the movable roller to be misaligned and leaking oil. Based on these problems, Chinese patent CN217968574U discloses a sliding structure of a roller press motor roller bearing seat. By setting a new slide groove structure, the stability and reliability of the bearing seat during the sliding process are enhanced. At the same time, by adding a replaceable limit plate, even if the limit plate is worn after long-term use and the slider is offset, this deficiency can be corrected by replacing a new limit plate, thereby avoiding replacing the entire sliding structure and saving costs. The outer wall of the limit plate is provided with a lifting member, and the lifting member is in conflict with the slider to further enhance the stability of the slider sliding, avoid the slider and the bearing seat from running offset, and improve the accuracy of the moving roller movement.

[0004] Since there is a small distance between every two sets of lifting parts in the limit plate, the bearing seat can only be tightened at the specified position, which seriously affects the moving range of the bearing seat. At the same time, the lifting parts can only conflict with the slider, resulting in poor fixing effect. Therefore, the bearing seat can still slide back and forth, resulting in the distance between the fixed roller and the movable roller cannot be fixed. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] The cam is an axially-coupled gear, and the cam is connected to the gear of the gear train with a first gear, and the cam is connected to the gear of the gear train with a second gear, and the cam is connected to the gear of the gear train with a second gear.

[0008] As a further description of the above technical solution:

[0009] The bottom of the first hollow frame is fixedly connected to the second hollow frame, and the two ends of the outer wall on the same side of the first hollow frame are fixedly connected to a U-shaped frame. A second shaft ring passes through the center of one side of the inner wall of the U-shaped frame, and the inner wall of the second shaft ring is rotatably connected to a second shaft core, one end face of the second shaft core is fixedly connected to a second gear, and the other end face of the second shaft core is fixedly connected to a turntable, and the gear protrusions on the outer walls of the first gear and the second gear are meshed with gear belts.

[0010] As a further description of the above technical solution:

[0011] Both ends of the base and the top of the U-shaped platform are fixedly connected with an insertion shaft, the outer wall of the insertion shaft vertically passes through both ends of the first bearing seat and the second bearing seat, and the top of the outer wall of the insertion shaft is threadedly connected with a threaded cover.

[0012] As a further description of the above technical solution:

[0013] The opposite sides of the sliding block are fixedly connected with a T-shaped plate, the opposite sides of the first hollow frame are fixedly connected with a slide plate, and one end of the outer wall of the T-shaped plate is slidably connected with the inner wall of the slide plate.

[0014] As a further description of the above technical solution:

[0015] Through holes are provided at both ends of the top of the second hollow frame, and both ends of the bottom of the gear long plate are fixedly connected with shafts, and the top of the outer wall of the shaft is sleeved with a return spring, and the bottom end of the inner wall of the through hole is fixedly connected with a hollow ring, and the inner wall of the hollow ring is sleeved with the bottom end of the outer wall of the shaft, and the bottom of the shaft is fixedly connected with a U-shaped frame.

[0016] As a further description of the above technical solution:

[0017] One end of the opposite surface of the U-shaped frame is fixedly connected to multiple groups of support rods, the top center of the second hollow frame is penetrated by a ventilation net, and the other end of the opposite surface of the U-shaped frame is fixedly connected to a pressure plate.

[0018] As a further description of the above technical solution:

[0019] A slide groove frame is passed through the center of the top of each of the first hollow frames, a slide plate is slidably connected to the inner wall of each of the slide groove frames, and a chassis is fixedly connected to the center of the top of each of the slide plates.

[0020] As a further description of the above technical solution:

[0021] An oil outlet pipe is vertically passed through the slide plate and the chassis, a swivel is fixedly connected to the top of the chassis outer wall, a top plate is rotatably connected to the top of the swivel inner wall, an oil outlet hole is vertically passed through the top plate, and an oil storage tank is fixedly connected to the outer edge of the top of the top plate.

[0022] As a further description of the above technical solution:

[0023] The top end of the inner wall of the oil storage tank is threadedly connected with a top cover, a pressure rod vertically penetrates the center of the top of the top cover, the bottom of the pressure rod is fixedly connected with a piston, and the outer wall of the piston is slidably connected to the inner wall of the oil storage tank.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) By setting a gear belt, the first gear and the second gear can be connected in series. When the staff rotates the turntable, the second shaft core and the second gear will rotate accordingly, and at the same time, the two sets of first gears and the first shaft core will also rotate together. When the threaded rod rotates, the slider can move back and forth on the outer wall of the rotating threaded rod, and at the same time, the second bearing seat and the movable roller above the U-shaped table will also move back and forth together, thereby playing a role in adjusting the distance between the fixed roller and the movable roller. By setting a connecting structure between the gear long plate and the gear short plate, the slider can be fixed. When the gear long plate moves downward and the tooth groove is separated from the gear protrusion on the bottom surface of the gear short plate, the slider can continue to slide, and at the same time, the position of the movable roller can be adjusted. This structure not only expands the moving range of the bearing seat, but also plays a role in fixing the distance between the fixed roller and the movable roller.

[0026] (2) By setting a connection structure between the plug shaft and the threaded cover, not only the first bearing seat can be fixed on the base, but also the second bearing seat can be fixed on the U-shaped table. By setting a simple connection method between the plug shaft and the threaded cover, the disassembly and assembly steps of the fixed roller and the movable roller are more convenient and quick. By setting a pressure plate, it is convenient for the staff to press down the two sets of U-shaped frames at the same time. When the U-shaped frame moves downward, the long gear plate on the top of the shaft rod will move downward. At this time, the reset spring will be compressed, and the excess gas in the third hollow frame will be discharged from the ventilation net. When the slider moves to the specified position, the pressure plate is released. At this time, the reset spring will quickly reset the long gear plate, and the outside gas will enter the third hollow frame from the ventilation net. It is worth noting that the turntable can be gently rotated during the upward movement of the long gear plate. At this time, let the slider slowly move a short distance, which helps to improve the meshing degree between the long gear plate and the short gear plate, thereby making the slider more stable.

[0027] (3) By setting up an oil storage tank, the lubricating oil can be stored. When the oil outlet hole moves to the top of the oil outlet pipe, the lubricating oil in the oil storage tank will flow along the oil outlet hole and the oil outlet pipe to the surface of the threaded rod, thereby lubricating the transmission mechanism of the slider. By setting up a connecting structure between the slider and the slide frame, when the slider slides back and forth in the slide frame, the lubricating oil delivery position can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is one of the structural schematic diagrams of the present invention;

[0029] Figure 2 This is the second structural schematic diagram of the present invention;

[0030] Figure 3 It is a front view of the present invention;

[0031] Figure 4 It is a front cross-sectional view of the present invention;

[0032] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle A area;

[0033] Figure 6 For the present invention Figure 4 A partial enlarged view of the middle B area;

[0034] Figure 7 For the present invention Figure 4 A partial enlarged view of the middle C area;

[0035] Figure 8 For the present invention Figure 4 A partial enlarged view of area D in the middle.

[0036] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0037] 1. Base; 2. First hollow frame; 3. Second hollow frame; 4. First shaft ring; 5. First shaft core; 6. First gear; 7. U-shaped frame; 8. Second shaft ring; 9. Second shaft core; 10. Second gear; 11. Turntable; 12. Gear belt; 13. Slider; 14. Gear short plate; 15. U-shaped table; 16. First bearing seat; 17. Moving roller; 18. Fixed roller; 19. Insert shaft; 20. Threaded cover; 21. T-shaped plate; 22. Slide plate; 2 3. The third hollow frame; 24. The through hole; 25. The gear long plate; 26. The shaft rod; 27. The return spring; 28. The hollow ring; 29. ​​The U-shaped frame; 30. The support rod; 31. The ventilation net; 32. The pressure plate; 33. The second bearing seat; 34. The slide frame; 35. The slide plate; 36. The chassis; 37. The oil outlet pipe; 38. The swivel; 39. The top plate; 40. The oil outlet hole; 41. The oil storage tank; 42. The top cover; 43. The pressure rod; 44. The piston; 45. The threaded rod. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0041] Reference Figure 1-8, an embodiment of the present invention: a bearing seat with a sliding mechanism, including a base 1, both ends of the outer wall of one side of the base 1 are fixedly connected with a first hollow frame 2, the bottom surface of the base 1 and the bottom surface of the first hollow frame 2 are arranged on the same horizontal plane, the bottom of the first hollow frame 2 is fixedly connected with a second hollow frame 3, a first shaft ring 4 is penetrated at the center of one side of the inner wall of the first hollow frame 2, a through hole is opened at the center of one side of the inner wall of the first hollow frame 2, the outer wall of the first shaft ring 4 is installed in the internal through hole of the first hollow frame 2, the inner wall of the first shaft ring 4 is rotatably connected with a first shaft core 5, one end surface of the first shaft core 5 is fixedly connected with a first gear 6, the first hollow A U-shaped frame 7 is fixedly connected to both ends of the outer wall on the same side of the frame 2, a second shaft ring 8 passes through the center of one side of the inner wall of the U-shaped frame 7, the inner wall of the second shaft ring 8 is rotatably connected to a second shaft core 9, one end face of the second shaft core 9 is fixedly connected to a second gear 10, and the other end face of the second shaft core 9 is fixedly connected to a turntable 11, and the gear protrusions on the outer walls of the first gear 6 and the second gear 10 are meshed with a gear belt 12. By setting the gear belt 12, the first gear 6 and the second gear 10 can be connected in series. When the staff rotates the turntable 11, the second shaft core 9 and the second gear 10 will rotate accordingly, and at the same time, the two groups of first gears 6 and the first shaft core 5 will also rotate together.

[0042] The other end faces of the first shaft core 5 are fixedly connected with threaded rods 45, and the outer walls of the threaded rods 45 are threadedly connected with sliders 13. Threaded holes penetrating the outer walls on both sides are provided in the sliders 13, and the outer walls of the threaded rods 45 penetrate the internal threaded holes of the sliders 13. When the threaded rods 45 rotate, the sliders 13 can move back and forth on the rotating outer walls of the threaded rods 45. The bottoms of the sliders 13 are fixedly connected with gear short plates 14, and the tops of the opposite surfaces of the sliders 13 are fixedly connected with U-shaped platforms 15. When the two groups of sliders 13 move back and forth, the U-shaped platforms 15 will also move back and forth together. A first bearing seat 16 is installed directly above the base 1, and a second bearing seat 33 is installed directly above the U-shaped platform 15. A movable roller 17 is fixedly connected to the top of the second bearing seat 33, and a fixed roller 18 is fixedly connected to the top of the first bearing seat 16.

[0043] Both ends of the top of the base 1 and the U-shaped platform 15 are fixedly connected with an insert shaft 19, the outer wall of the insert shaft 19 vertically penetrates both ends of the first bearing seat 16 and the second bearing seat 33, the top of the outer wall of the insert shaft 19 is threadedly connected with a threaded cover 20, and both ends of the top of the first bearing seat 16 and the second bearing seat 33 are provided with through holes that penetrate up and down, the outer wall of the insert shaft 19 vertically penetrates the internal through holes of the first bearing seat 16 and the second bearing seat 33 upward, and the protruding ends are connected with the threaded cover 20. By setting the connection structure between the insert shaft 19 and the threaded cover 20, not only the first bearing seat 16 can be It is fixed on the base 1, and the second bearing seat 33 can also be fixed on the U-shaped table plate 15. By setting a simple connection method between the plug shaft 19 and the threaded cover 20, the disassembly and assembly steps of the fixed roller 18 and the movable roller 17 are more convenient and quick. The opposite sides of the slider 13 are fixedly connected with a T-shaped plate 21, and the opposite sides of the first hollow frame 2 are fixedly connected with a slide plate 22. One end of the outer wall of the T-shaped plate 21 is slidably connected to the inner wall of the slide plate 22. By setting a connection structure between the T-shaped plate 21 and the slide plate 22, it is beneficial to improve the stability of the slider 13 during sliding.

[0044] A third hollow frame 23 is vertically penetrated at the center of the bottom of the first hollow frame 2, and through holes 24 are provided at both ends of the top of the second hollow frame 3. The inner wall of the third hollow frame 23 is slidably connected with a gear long plate 25, and the tooth groove on the top surface of the gear long plate 25 is meshed with the gear protrusion on the bottom surface of the gear short plate 14. By setting a connecting structure between the gear long plate 25 and the gear short plate 14, the slider 13 can be fixed. When the gear long plate 25 moves downward and the tooth groove disengages from the gear protrusion on the bottom surface of the gear short plate 14, the slider 13 can continue to slide, and the position of the movable roller 17 can be adjusted. The two ends of the bottom of the gear long plate 25 are fixedly connected with a shaft rod 26, and the top end of the outer wall of the shaft rod 26 is sleeved with a return spring 27. The return spring 27 can quickly push the gear long plate 25 upward, and the bottom end of the inner wall of the through hole 24 is fixedly connected with a hollow ring 28, and the inner wall of the hollow ring 28 is sleeved with the bottom end of the outer wall of the shaft rod 26.

[0045] A U-shaped frame 29 is fixedly connected to the bottom of the shaft rod 26, and a plurality of support rods 30 are fixedly connected to one end of the opposite surface of the U-shaped frame 29. A ventilation net 31 is passed through the center of the top of the second hollow frame 3. A pressure plate 32 is fixedly connected to the other end of the opposite surface of the U-shaped frame 29. By setting the support rod 30, the two groups of U-shaped frames 29 can be connected together. By setting the pressure plate 32, it is convenient for the staff to press the two groups of U-shaped frames 29 downward at the same time. When the U-shaped frame 29 moves downward, the gear long plate 25 at the top of the shaft rod 26 will move downward, and the return spring 27 will be pressed. At the same time, the excess gas in the third hollow frame 23 will be discharged from the ventilation net 31. When the slider 13 moves to the specified position, the pressure plate 32 is released. At this time, the reset spring 27 will quickly reset the gear long plate 25, and the outside gas will enter the third hollow frame 23 from the ventilation net 31. It is worth noting that during the upward movement of the gear long plate 25, the turntable 11 can be gently rotated. At this time, let the slider 13 slowly move a short distance, which helps to improve the meshing degree between the gear long plate 25 and the gear short plate 14, thereby making the slider 13 more stable.

[0046] A slide frame 34 is penetrated at the center of the top of the first hollow frame 2, and a slide plate 35 is slidably connected to the inner wall of the slide frame 34. A chassis 36 is fixedly connected to the center of the top of the slide plate 35. An oil outlet pipe 37 is vertically penetrated in the slide plate 35 and the chassis 36. A first through hole is opened at one end of the top of the slide plate 35 and a second through hole is opened at one end of the top of the chassis 36. The inner diameters of the first through hole and the second through hole are the same, and the internal space of the first through hole is connected to the internal space of the second through hole. The outer wall of the oil outlet pipe 37 is installed in the first through hole and the second through hole. A swivel 38 is fixedly connected to the top of the outer wall of the chassis 36, and a top plate 39 is rotatably connected to the top of the inner wall of the swivel 38. The bottom surface of the top plate 39 can rotate closely against the top surface of the chassis 36. An oil outlet hole 40 is vertically penetrated in the top plate 39, and the oil outlet hole 40 can be moved to the top of the oil outlet pipe 37. An oil storage tank 4 is fixedly connected at the outer edge of the top of the top plate 39. 1. By setting up an oil storage tank 41, lubricating oil can be stored. When the oil outlet hole 40 moves to just above the oil outlet pipe 37, the lubricating oil in the oil storage tank 41 will flow along the oil outlet hole 40 and the oil outlet pipe 37 to the surface of the threaded rod 45, thereby lubricating the transmission mechanism of the slider 13. By setting a connecting structure between the slide plate 35 and the slide groove frame 34, when the slide plate 35 slides back and forth in the slide groove frame 34, the placement position of the lubricating oil can be adjusted. The top of the inner wall of the oil storage tank 41 is threadedly connected with a top cover 42, and a pressure rod 43 is vertically penetrated at the center of the top of the top cover 42. The bottom of the pressure rod 43 is fixedly connected with a piston 44. The outer wall of the piston 44 is slidably connected to the inner wall of the oil storage tank 41. A through hole that penetrates up and down is opened at the center of the top of the top cover 42. The outer wall of the pressure rod 43 is installed in the internal through hole of the top cover 42. When the pressure rod 43 and the piston 44 are pressed, the discharge speed of the lubricating oil can be accelerated.

[0047] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A bearing seat with a sliding mechanism, comprising a base (1), characterized in that: The first hollow frame (2) is fixedly connected to both ends of the outer wall of one side of the base (1), a first shaft ring (4) is passed through the center of one side of the inner wall of the first hollow frame (2), the inner wall of the first shaft ring (4) is rotatably connected to the first shaft core (5), one end surface of the first shaft core (5) is fixedly connected to the first gear (6), the other end surface of the first shaft core (5) is fixedly connected to the threaded rod (45), the outer wall of the threaded rod (45) is threadedly connected to the slider (13), the bottom of the slider (13) is fixedly connected to the gear short plate (14), and the top of the opposite surface of the slider (13) is fixedly connected A U-shaped platform (15) is provided, a first bearing seat (16) is installed directly above the base (1), a second bearing seat (33) is installed directly above the U-shaped platform (15), a movable roller (17) is fixedly connected to the top of the second bearing seat (33), a fixed roller (18) is fixedly connected to the top of the first bearing seat (16), a third hollow frame (23) vertically penetrates the center of the bottom of the first hollow frame (2), a gear long plate (25) is slidably connected to the inner wall of the third hollow frame (23), and the tooth groove on the top surface of the gear long plate (25) meshes with the gear protrusion on the bottom surface of the gear short plate (14).

2. A bearing seat with a sliding mechanism according to claim 1, characterized in that: The bottom of each of the first hollow frames (2) is fixedly connected to a second hollow frame (3); both ends of the outer wall on the same side of the first hollow frame (2) are fixedly connected to a U-shaped frame (7); a second shaft ring (8) passes through the center of one side of the inner wall of the U-shaped frame (7); a second shaft core (9) is rotatably connected to the inner wall of the second shaft ring (8); a second gear (10) is fixedly connected to one end surface of the second shaft core (9); a rotating disk (11) is fixedly connected to the other end surface of the second shaft core (9); and a gear belt (12) is meshed with gear protrusions on the outer walls of the first gear (6) and the second gear (10).

3. The bearing seat with a sliding mechanism according to claim 1, characterized in that: The base (1) and the top of the U-shaped platform (15) are both fixedly connected with an insertion shaft (19), the outer wall of the insertion shaft (19) vertically penetrates both ends of the first bearing seat (16) and the second bearing seat (33), and the top of the outer wall of the insertion shaft (19) is threadedly connected with a threaded cover (20).

4. The bearing seat with a sliding mechanism according to claim 1, characterized in that: The opposite sides of the sliding block (13) are fixedly connected to a T-shaped plate (21), the opposite sides of the first hollow frame (2) are fixedly connected to a sliding groove plate (22), and one end of the outer wall of the T-shaped plate (21) is slidably connected to the inner wall of the sliding groove plate (22).

5. The bearing seat with a sliding mechanism according to claim 2, characterized in that: Through holes (24) are provided at both ends of the top of the second hollow frame (3); both ends of the bottom of the gear long plate (25) are fixedly connected to shafts (26); the top of the outer wall of the shaft (26) is sleeved with a return spring (27); the bottom end of the inner wall of the through hole (24) is fixedly connected to a hollow ring (28); the inner wall of the hollow ring (28) is sleeved with the bottom end of the outer wall of the shaft (26); and the bottom of the shaft (26) is fixedly connected to a U-shaped frame (29).

6. A bearing seat with a sliding mechanism according to claim 5, characterized in that: A plurality of support rods (30) are fixedly connected to one end of the opposite surface of the U-shaped frame (29), a ventilation net (31) runs through the center of the top of the second hollow frame (3), and a pressure plate (32) is fixedly connected to the other end of the opposite surface of the U-shaped frame (29).

7. The bearing seat with a sliding mechanism according to claim 1, characterized in that: A slide groove frame (34) is passed through the center of the top of each of the first hollow frames (2); a slide plate (35) is slidably connected to the inner wall of each of the slide groove frames (34); and a chassis (36) is fixedly connected to the center of the top of each of the slide plates (35).

8. The bearing seat with a sliding mechanism according to claim 7, characterized in that: An oil outlet pipe (37) vertically penetrates the slide plate (35) and the chassis (36); a swivel (38) is fixedly connected to the top of the outer wall of the chassis (36); a top plate (39) is rotatably connected to the top of the inner wall of the swivel (38); an oil outlet hole (40) vertically penetrates the top plate (39); and an oil storage tank (41) is fixedly connected to the outer edge of the top of the top plate (39).

9. A bearing seat with a sliding mechanism according to claim 8, characterized in that: The top end of the inner wall of the oil storage tank (41) is threadedly connected to a top cover (42), a pressure rod (43) vertically penetrates the center of the top of the top cover (42), the bottom of the pressure rod (43) is fixedly connected to a piston (44), and the outer wall of the piston (44) is slidably connected to the inner wall of the oil storage tank (41).

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